Crystal structure of dibenzothiophene sulfone monooxygenase BdsA from Bacillus subtilis WU-S2B
2017
The dibenzothiophene (DBT) sulfone monooxygenase BdsA from Bacillus subtilis WU-S2B catalyzes the conversion of DBT sulfone to 2′-hydroxybiphenyl 2-sulfinate. We report the crystal structures of BdsA at a resolution of 2.80 A. BdsA exists as a homotetramer with a dimer-of-dimers configuration in the crystal, and the interaction between E288 and R296 in BdsA is important for tetramer formation. A structural comparison with homologous proteins shows that the orientation and location of the α9-α12 helices in BdsA are closer to those of the closed form than those of the open form in the EDTA monooxygenase EmoA. Proteins 2017; 85:1171–1177. © 2017 Wiley Periodicals, Inc.
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